gemini: enable GPIO sysfs interface

SVN-Revision: 24839

target/linux/gemini/config-default

@@ -52,6 +52,7 @@ CONFIG_GENERIC_GPIO=y
 CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ=y
 # CONFIG_GENERIC_TIME is not set
 CONFIG_GPIOLIB=y
+CONFIG_GPIO_SYSFS=y
 # CONFIG_HAMRADIO is not set
 CONFIG_HARDIRQS_SW_RESEND=y
 CONFIG_HAS_DMA=y